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Mallika S Sarma, Patty X Kuo, Sonny Agustin Bechayda, Christopher W Kuzawa, Lee T Gettler
Early life cues of environmental harshness and unpredictability have been hypothesized to influence within-species variation in the timing of life history transitions and the dynamics of reproductive strategies, such as investments in mating and parenting. It is also believed that adolesence is an influential developmental period for male reproductive strategies, with those who achieve greater social and sexual success during that period maintaining faster life history strategies into adulthood. If correct, such early life and post-pubertal experiences could also help shape the psychobiological pathways that mediate reproductive strategies, including the well documented physiological shifts that occur when some men become parents...
November 29, 2017: Physiology & Behavior
Robert W Westermann, Kyle J Hancock, Joseph A Buckwalter, Benjamin Kopp, Natalie Glass, Brian R Wolf
BACKGROUND: Capitellar osteochondritis dissecans (OCD) is commonly managed surgically in symptomatic adolesent throwers and gymnasts. Little is known about the impact that surgical technique has on return to sport. PURPOSE: To evaluate the clinical outcomes and return-to-sport rates after operative management of OCD lesions in adolescent athletes. STUDY DESIGN: Systematic review; Level of evidence, 4. METHODS: The PubMed, CINAHL, EMBASE, SPORTDiscus (EBSCO), and Cochrane Central Register of Controlled Trials databases were queried for studies evaluating outcomes and return to sport after surgical management of OCD of the capitellum...
June 2016: Orthopaedic Journal of Sports Medicine
Anne C Skeldon, Gianne Derks, Derk-Jan Dijk
Sleep changes across the lifespan, with a delay in sleep timing and a reduction in slow wave sleep seen in adolescence, followed by further reductions in slow wave sleep but a gradual drift to earlier timing during healthy ageing. The mechanisms underlying changes in sleep timing are unclear: are they primarily related to changes in circadian processes, or to a reduction in the neural activity dependent build up of homeostatic sleep pressure during wake, or both? We review existing studies of age-related changes to sleep and explore how mathematical models can explain observed changes...
August 2016: Sleep Medicine Reviews
Saadia Yasir, Bushra Kant, Muhammad Farooq Dar
BACKGROUND: Dysmenorrhea is quite frequent and may affect the daily activities especially during the early years of adolesence. This study aimed to evaluate the prevalence of dysmenorrhoea, its impact, and the management strategies adopted. METHODS: This cross-sectional study was done with 356 consenting females studying at Mohiuddin Islamic University, Mirpur Azad Kashmir, between 18-25 years of age, with regular menstrual cycles and normal abdomino-pelvic ultrasound and not taking any medication...
July 2014: Journal of Ayub Medical College, Abbottabad: JAMC
Guoying Deng, Yongxing Zhang, Haifeng Cai, Wentao Gu, Yun Cai, Lei Xie, Bo Liu, Jipeng Li, Siyu Li, Dantong Cheng, Qinghua Zhao
OBJECTIVE: To explore the incidence of self-reported neck or shoulder pain (NSP) and lower back pain (LBP) among Chinese adolescents in Shanghai and identify the influencing factors for the incidences of NSP and LBP. METHODS: A total of 3 600 students were selected from 30 high schools randomly chosen from 237 regular full-time high schools registered in Shanghai. From each school, 40 students were selected from each of the tenth, eleventh and twelfth grades for a total of 120 students per school...
November 25, 2014: Zhonghua Yi Xue za Zhi [Chinese medical journal]
(no author information available yet)
No abstract text is available yet for this article.
1960: What's New
Farzaneh Salem, Amin Rostami-Hodjegan, Trevor N Johnson
Many drug–drug interactions (DDIs) in the pediatric population are managed based on data generated in adults. However, due to developmental changes in elimination pathways from birth to adolesence, and variable weight‐adjusted dose of interacting drugs, the assumption of DDIs being similar in adults and pediatrics might not be correct. This study compares the magnitude of reported DDIs in pediatric and adult populations. A systematic literature review was undertaken to identify reports of DDIs in pediatric subjects...
May 2013: Journal of Clinical Pharmacology
Vinay Kumar Chugh, Vijay Prakash Sharma, Pradeep Tandon, Gyan Prakash Singh
The orthodontic treatment of a young adolesent female with a high Angle Class II Division 1 malocclusion is presented. Successful treatment required a careful diagnosis, specific planning, and efficient biomechanical control of the force systems to correct the disharmony in the vertical and horizontal dimensions. En masse retraction of the six maxillary anterior teeth was done via a Kalra simultaneous intrusion and retraction archwire. Precise mechanics with excellent vertical control made it possible to successfully correct the malocclusion without undesirable sequelae...
2012: Orthodontics: the Art and Practice of Dentofacial Enhancement
A Fux Noy, A Fuks
Accurate assessment of pulp status is one of the greatest diagnostic challenges in clinical practice. This may be further complicated in children and adolescent where the practitioner is faced with different situations such as: primary teeth, developing permanent dentition, traumatized teeth, patients undergoing orthodontic treatment. In addition, the dentist is frequently faced with young children who have limited ability to recall a pain history or cooperate with the test itself. A variety of pulp testing approaches exist, and there may be a confusion as to their validity in different clinical situations...
January 2010: Journal of the Israel Dental Association
Edward de Hann
No abstract text is available yet for this article.
September 2008: Journal of Neuropsychology
K S Kendler, C O Gardner, P Annas, P Lichtenstein
BACKGROUND: Common fears change over development. Genetic and environmental risk factors for fears are partly shared across fears and partly fear-specific. The nature of the changes in common and fear-specific genetic and environmental risk factors over time is unknown. METHOD: Self-reported fears were obtained at ages 13-14, 16-17 and 19-20 from 2404 twins in the Swedish Twin Study of Child and Adolescent Development. A multivariate longitudinal twin analysis was conducted with Mx...
December 2008: Psychological Medicine
Jaime L Diaz-Granados, Danielle L Graham
BACKGROUND: Alcohol abuse among adolescents is prevalent. Epidemiological studies suggest that alcohol abuse during the adolescent developmental period may result in long-term changes such as an increased susceptibility to alcohol-related problems in adulthood. Laboratory findings suggest that alcohol exposure during the adolescent developmental period, as compared with adulthood, may differentially impact subsequent neurobehavioral responses to alcohol. The present study was designed to examine whether ethanol exposure, continuous versus intermittent, during the adolescent developmental period would alter the aversive properties of ethanol in adult C3H mice...
December 2007: Alcoholism, Clinical and Experimental Research
Judith R Homberg, Olga J G Schiepers, Anton N M Schoffelmeer, Edwin Cuppen, Louk J M J Vanderschuren
RATIONALE: Serotonin is an important modulator of social behaviour. Individual differences in serotonergic signalling are considered to be a marker of personality that is stable throughout lifetime. While a large body of evidence indicates that central serotonin levels are inversely related to aggression and sexual behaviour in adult rats, the relationship between serotonin and social behaviour during peri-adolescence has hardly been explored. OBJECTIVE: To study the effect of acute and constitutive increases in serotonin neurotransmission on social behaviour in peri-adolescent rats...
December 2007: Psychopharmacology
Nevenka Roncević, Aleksandra Stojadinović, Irena Odri
INTRODUCTION: The prevalence of chronic diseases in adolescence is constantly increasing, especially in the last two decades. Adolescence is a period of important changes: body growth and development, sexual development, development of cognitive abilities, change in family relations and between peers, formation of personal identity and personal system of values, making decisions on future occupation etc. CHRONIC DISEASES IN ADOLESENCE: Chronic disorders affect all development issues and represent an additional burden for adolescents...
January 2006: Medicinski Pregled
Z Y Zhang, B L Jin, S F Tao
30 cases of submandibular gland tissue were determined quantitatively in this article.It is noticed that there was no great change during and after the birth .But at the adolesence stage,the data began to change was steady in adult state.At pressenium,the change speed of mean was faster.Observation under microscope:the submandibular gland in 7-8 month old embryo was developed basically and similar to newborn.It had good blood supply and secrete function.Adipose tissue,which is important indication of changed with age in saliva gland,did not exit in submandibular gland of human being...
September 1994: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
E Davids, D-A Krause, M Specka, M Gastpar
It is increasingly recognised that one-third to one-half of children diagnosed as having attention deficit/hyperactivity disorder (ADHD) continue to exhibit symptoms of the disorder into adulthood. The purpose of this study was to report on the demographic and clinical profile of 85 adults (50 men, 35 women) who presented with adult ADHD and meet DSM-IV criteria for the disorder. Patients underwent a diagnostic work-up consisting of medical, psychiatric and demographic evaluation. Deficits in educational and social competence could be demonstrated in more than one third of the patients...
July 2004: Das Gesundheitswesen
No abstract text is available yet for this article.
June 30, 1958: Rivista Sperimentale di Freniatria e Medicina Legale Delle Alienazioni Mentali
D Zheng, L Shen, G Wu, Y Jiang, Y Zhou, W Wang
In this study, power spectrum analysis of the autoregressive model was used to quantitatively estimate the power spectrum of R-R intervals in adolesent during the state of the mental stress. The power spectrum density of the lower frequency (HF: 0.05-0.15 Hz) and the high frequency (HF: 0.15-0.5 Hz) component were acquired. The results showed that during the mental stress the HF component decreased significantly (P < 0.001) while the LF component increased relatively and the center frequency of the HF increased remarkably (P < 0...
March 1997: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
J E Max, S L Koele, W L Smith, Y Sato, S D Lindgren, D A Robin, S Arndt
OBJECTIVE: To study psychiatric and behavioral morbidity associated with severe traumatic brain injury (TBI). METHOD: A consecutive series (n = 24) of children aged 5 through 14 years who suffered a severe TBI were matched to subjects who sustained a mild TBI and to a second matched group who sustained an orthopedic injury with no evidence of TBI. Standardized psychiatric, behavioral, and neuroimaging assessments were conducted on average 2 years after injury. RESULTS: Severe TBI was associated with a significantly higher rate of current "novel" psychiatric disorders (15/24; 63%) compared with children with mild TBI (5/24; 21%) and orthopedic injury (1/24; 4%)...
August 1998: Journal of the American Academy of Child and Adolescent Psychiatry
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